US7426817B2 - Independent center reel position adjustment for an agricultural harvesting machine - Google Patents

Independent center reel position adjustment for an agricultural harvesting machine Download PDF

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Publication number
US7426817B2
US7426817B2 US11/366,034 US36603406A US7426817B2 US 7426817 B2 US7426817 B2 US 7426817B2 US 36603406 A US36603406 A US 36603406A US 7426817 B2 US7426817 B2 US 7426817B2
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Prior art keywords
reel
platform section
platform
support arm
reel support
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US11/366,034
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US20070204583A1 (en
Inventor
Bruce Alan Coers
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Deere and Co
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Deere and Co
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Priority to US11/366,034 priority Critical patent/US7426817B2/en
Assigned to DEERE & COMPANY reassignment DEERE & COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COERS, BRUCE ALAN
Priority to ARP070100847A priority patent/AR059701A1/es
Priority to PCT/US2007/005432 priority patent/WO2007103207A2/en
Priority to BRPI0708049A priority patent/BRPI0708049B1/pt
Priority to EP07752150.8A priority patent/EP1993340B1/en
Publication of US20070204583A1 publication Critical patent/US20070204583A1/en
Application granted granted Critical
Publication of US7426817B2 publication Critical patent/US7426817B2/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D57/00—Delivering mechanisms for harvesters or mowers
    • A01D57/01—Devices for leading crops to the mowing apparatus
    • A01D57/02—Devices for leading crops to the mowing apparatus using reels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D61/00—Elevators or conveyors for binders or combines
    • A01D61/002—Elevators or conveyors for binders or combines transversal conveying devices

Definitions

  • the present invention relates to agricultural harvesting machines, such as combines, and, more particularly to agricultural harvesting machines including a reel above a cutting platform for assisting in feeding of crop material through the cutting platform.
  • An agricultural harvesting machine such as a combine includes a head and a feeder housing which remove the crop material from the field, gather the crop material and transport the crop material to a separator.
  • the head In the case of thinner stemmed crops such as soybeans, wheat, etc. which may be cut with a sickle bar carrying a plurality of knives, the head may also be known as a cutting platform.
  • the separator removes the grain crop material from the non-grain crop material.
  • the grain is cleaned and deposited in a grain tank.
  • an unloading auger which is positioned alongside the combine during harvesting is moved to the unloading position in which the auger extends approximately perpendicular to the longitudinal axis of the combine.
  • the combine drives alongside a vehicle into which the grain is to be unloaded, such as a semi-trailer, and the unloading auger is actuated to discharge the grain into the vehicle.
  • a cutting platform may generally be of two types.
  • One type typically has a sheet metal floor with a dual feed auger near the rear of the cutting platform for feeding the crop material longitudinally to the feeder housing.
  • a cutting platform of this type with auger feed is more common.
  • FIG. 1 Another type of cutting platform, also known as a draper platform, utilizes a flat, wide belt, referred to as a draper or draper belt to convey crop material.
  • the arrangement and number of belts vary among platforms.
  • One style of draper platform has two side belts that convey crop material longitudinally, to the center of the platform, where a center feed belt moves the crop material laterally into the feeder housing.
  • Each belt is wrapped around a pair of rollers, one being a drive roller and the other being an idler roller.
  • An example of this type draper arrangement is disclosed in U.S. Pat. No. 6,202,397, which is assigned to the assignee of the present invention.
  • An advantage of a draper platform is that larger amounts of crop material can be transported without plugging, etc. For example, with wide platforms approaching 40 feet or even larger, the amount of crop material transported to the feeder housing can be substantial. With an auger feed platform, the crop material may bind between the auger and the back wall of the platform. In contrast, with a draper platform, the crop material is carried on top of the belt with less chance for plugging.
  • Draper platforms currently in use have a rigid framework not allowing the framework to flex to any appreciable extent during use.
  • the draper platform can be placed in a “float” position such that the cutterbar at the leading edge does not dig into the ground, but the leading edge of the platform itself cannot flex across the width of the platform as a result of uneven ground terrain. This results in some crop material being missed in ground depressions, etc., while also possibly causing a part of the cutterbar to dig into localized ground elevations (e.g., small mounds, etc.). Of course, missed crop material directly translates into missed revenue, and localized gouging of soil can cause additional repair expenses resulting from broken knives, knife guards, etc.
  • a single reel extends across the width of the platform and is supported on either end by a movable reel support arm.
  • the reel support arms are simultaneously moved using an actuator such as a switch or lever in the operator's cab, such that the reel remains generally parallel to the cutterbar of the cutting platform.
  • the invention comprises, in one form thereof, a cutting platform for use with an agricultural harvesting machine.
  • the cutting platform includes a first platform section and a second platform section pivotally coupled together about a first axis.
  • a first reel and a second reel are positioned in end-to-end juxtaposed relation to each other above the first platform and the second platform.
  • a reel support arm is positioned between and carries each of the first reel and the second reel. The reel support arm is movable toward and away from the first platform section and the second platform section.
  • the invention comprises, in another form thereof, a method of operating an agricultural harvesting machine, including the steps of: pivotally moving a first platform section relative to a second platform section about a first axis; rotatably supporting a first reel and a second reel above the first platform section and the second platform section with a reel support arm positioned therebetween; and moving the reel support arm toward and/or away from the first platform section and the second platform section.
  • FIG. 1 is a fragmentary, top view of an agricultural combine including an embodiment of a draper platform of the present invention
  • FIG. 2 is a fragmentary, perspective view of the agricultural combine of FIG. 1 ;
  • FIG. 3 is a front view of the cutting platform shown in FIGS. 1 and 2 ;
  • FIG. 4 is a front, schematic view of the cutting platform shown in FIGS. 1-3 , with the frame of the cutting platform in a straight, unflexed position;
  • FIG. 5 is a front, schematic view of the cutting platform shown in FIGS. 1-4 , with the wing platform sections pivoted downward and no center reel height compensation;
  • FIG. 6 is a front, schematic view of the cutting platform shown in FIGS. 1-5 , with the wing platform sections pivoted downward, and including center reel height compensation.
  • Combine 10 includes a feeder housing 14 which is detachably coupled with cutting platform 12 .
  • Feeder housing 14 receives the crop material from cutting platform 12 , both grain and non-grain crop material, and transports the crop material to a separator within combine 10 in known manner (not shown).
  • the grain crop material is separated from the non-grain crop material, cleaned and transported to a grain tank.
  • the non-grain crop material is transported to a chopper, blower, etc. in known manner and distributed back to the field.
  • Cutting platform 12 generally includes a plurality of platform sections 16 , 18 and 20 , a cutterbar assembly 22 and a reel assembly 24 .
  • platform section 16 is a center platform section
  • platform section 18 is a first wing platform section
  • platform section 20 is a second wing platform section.
  • cutting platform 12 may be configured with more or less platform sections, depending upon the particular application.
  • Each platform section 16 , 18 and 20 generally includes a frame 26 , a plurality of float arms 28 coupled with a respective frame 26 , a cutterbar 30 carried by the outboard ends of respective float arms 28 , an endless belt 32 , and a plurality of belt guides 34 .
  • the frame 26 of first wing platform section 18 and second wing platform section 20 are each pivotally coupled with center platform section 16 , such that the outboard ends of first wing platform section 18 and second wing platform section 20 can move up and down independent from center platform section 16 .
  • a lift cylinder 36 coupled between the frame of combine 10 and feeder housing 14 lifts the entire cutting platform 12
  • a first tilt cylinder 38 coupled between the respective frame 26 of first wing platform section 18 and center platform section 16 pivotally moves first wing platform section 18 relative to center platform section 16
  • a second tilt cylinder 40 coupled between the respective frame 26 of second wing platform section 20 and center platform section 16 pivotally moves second wing platform section 20 relative to center platform section 16 .
  • Cutterbar assembly 22 includes two cutterbars 30 carried at the outboard ends of float arms 28 (i.e., at the leading edge of a platform section 16 , 18 or 20 ).
  • Each cutterbar 30 includes a plurality of knives 42 carried by a bar (not specifically shown).
  • the particular type of knife can vary, such as a single blade knife (as shown) or a double blade knife.
  • the bar is formed from a metal which is flexible to an extent allowing a desired degree of flexure across the width of cutting platform 12 .
  • a majority of each cutterbar 30 is carried by a respective first wing platform section 18 or second wing platform section 20 , with a lesser extent at the adjacent inboard ends of each cutterbar 30 being carried by center platform section 16 .
  • Cutterbars 30 are simultaneously driven by a single knife drive 44 , providing reciprocating movement in concurrent opposite directions between cutterbars 30 .
  • Float arms 28 may be pivoted at their connection locations with a respective frame 26 . Each float arm 28 is also associated with a respective roller 54 .
  • the plurality of rollers 54 for each platform section 16 , 18 and 20 carry and are positioned within a loop of a respective endless belt 32 .
  • At the inboard end of first wing platform section 18 and second wing platform section 20 is a driven roller, and at the outboard end of first wing platform section 18 and second wing platform section 20 is an idler roller.
  • the rollers positioned between the inboard drive roller and outboard idler roller at each float arm 28 also function as idler rollers. It will be appreciated that the number of float arms 28 , and thus the number of rollers 54 , may vary depending upon the overall width of cutting head 12 transverse to the travel direction.
  • Reel assembly 24 includes two reels 56 , center reel support arm 58 and a pair of outer reel support arms 60 .
  • Outer reel support arms 60 are pivotally coupled at one end thereof with an outboard end of a respective first wing platform section 18 or second wing platform section 20 .
  • Outer reel support arms 60 rotationally carry a respective reel 56 at an opposite end thereof.
  • Each outer reel support arm 60 may be selectively moved up and down using a hydraulic cylinder, and the pair of hydraulic cylinders are typically coupled in parallel so that they move together upon actuation.
  • Center reel support arm 58 is pivotally coupled at one end thereof with center platform section 16 above the opening leading to feeder housing 14 .
  • Center reel support arm 58 rotationally carries an inboard end of each reel 56 at an opposite end thereof.
  • a hydraulic motor 62 or other suitable mechanical drive rotationally drives each reel 56 . More particularly, hydraulic motor 62 drives a common drive shaft 64 through a chain and sprocket or other suitable arrangement (not shown). The rotational speed of reels 56 can be adjusted by an operator by adjusting the rotational speed of hydraulic motor 62 .
  • Center reel support arm 58 may be selectively moved up and down using a hydraulic cylinder 66 .
  • Center reel support arm 58 is movable independently from outer reel support arms 60 .
  • drive shaft 64 driven by hydraulic motor 62 is coupled at each end thereof via a universal joint 68 with a respective reel 56 .
  • This independent movement of center reel support arm 58 can be accomplished manually using a separate actuating switch or lever in operator's cab 70 , or automatically using an electronic controller 72 located within cab 70 or other suitable location.
  • cutting platform 12 includes a plurality of position sensors associated with platform sections 16 , 18 and 20 , and reels 56 .
  • first wing platform section 18 also referred to as a first platform section
  • Center platform section 16 also referred to as a second platform section
  • Second wing platform section 20 also referred to as a third platform section
  • Center reel support arm 58 includes a position sensor 86
  • outer reel support arm 60 each include a position sensor 88 providing an indication of the relative pivot angle between reel support arms 58 , 60 and the frame 26 of a corresponding platform section 16 , 18 or 20 .
  • the relative positions of the respective sensors 74 - 88 are indicated along the length of cutting platform 12 , but are not intended to indicate the actual positions of the respective sensors. For example, it is possible to position sensor 74 , 76 and 82 , 84 near the outward ends of first wing platform section 18 and second wing platform section 20 as shown.
  • sensors 74 , 76 and 82 , 84 would not likely be positioned under the lower surface of cutting platform 12 as shown, where they may come in contact with the ground surface and possibly be damaged. It is more likely that sensors 74 - 84 would be carried and somewhat protected by a selected float arm 28 associated with each respective platform section 16 , 18 and 20 . Similarly, the mounting locations of position sensors 86 and 88 are shown for illustration only and may vary depending upon the application.
  • first wing platform section 18 and second wing platform section 20 pivotally move up and down relative to center platform section 16 about a respective axis 90 and 92 ( FIGS. 1 and 2 ), as indicated by arrows 94 .
  • each reel 56 rotates to move the cut crop material onto endless belts 32 as the crop material is cut using cutter bar assembly 22 .
  • each reel 56 carries a plurality of tines 94 at predetermined positions (only a few of which are shown), each tine having a predetermined length.
  • the plurality of tines 94 orient the crop material ahead of cutterbar assembly 22 to be cut with knives 42 in opposition with knife guards (not shown).
  • the crop material is then moved across cutterbar assembly 22 and onto endless belts 32 where it is conveyed to center platform section 16 and feeder housing 14 .
  • FIG. 4 the overall profile of reels 56 (including tines 94 ) relative to cutterbar assembly 22 is shown when first wing platform section 18 and second wing platform section 20 are in a straight, unflexed position. This is the position of reels 56 when cutting platform 12 is operating over a ground surface which is substantially flat across the width thereof. As is apparent, the profiles of reels 56 do not impinge on cutter bar assembly 22 (shown with dashed line) when in a straight, unflexed position.
  • FIG. 5 illustrates the outer profile of each reel 56 (including tines 94 ) relative to cutterbar assembly 22 when first wing platform section 18 and second wing platform section 20 are pivoted downward relative to center platform section 16 , and center reel support arm 58 is maintained in a stationary position (i.e., no center reel height compensation).
  • the tines of each reel 56 overlay the profile of cutterbar assembly 22 , and therefore the tines would engage with knives 42 of cutterbar assembly 22 . This would likely result in damage to the tines 94 , knives 42 and/or knife guards 46 . This in turn would result in unnecessary time and expense in repairing the broken parts.
  • each reel 56 (including tines 94 ) is shown when first wing platform section 18 and second wing platform section 20 are pivoted downward relative to center platform section 16 , and center reel support arm 58 is moved in an upward direction such that tines 94 do not impinge with cutterbar assembly 22 .
  • Height and tilt sensors 74 - 84 are used to determine the relative orientation and operating height of platform sections 16 , 18 and 20 .
  • Position sensor 86 is used to detect the position of center reel support arm 58
  • position sensors 88 are used to detect the position of outer reel support arms 60 .
  • the output signals from sensors 74 - 88 are transmitted to controller 72 onboard combine 10 , typically within cab 70 .
  • Controller 72 controllably actuates hydraulic cylinder 66 coupled with center reel support arm 58 to thereby move the adjacent inboard ends of reels 56 in an upward direction relative to cutterbar assembly 22 .
  • the extent to which center reel support arm 58 is moved can be determined mathematically using the input sensor signals, or may be determined empirically using a lookup table depending upon the relative orientations between platform sections 16 , 18 and 20 .
  • center reel support arm 58 carries an additional hydraulic cylinder 96 coupled with an offset mounting plate 98 .
  • Plate 98 carries hydraulic motor 62 , and rotatably carries drive shaft 64 . Because of the offset nature in which mounting plate 98 is attached with center reel support arm 58 , the inboard, adjacent ends of reels 56 pivot upward and away from cutterbar assembly 22 when the ram of hydraulic cylinder 96 is extended from the position shown in FIG. 2 . It is thus possible to move the adjacent, inboard ends of reels 56 relative to cutterbar assembly 22 using hydraulic cylinder 66 and/or hydraulic cylinder 96 , dependent upon a desired clearance distance beneath reels 56 .

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
  • Harvester Elements (AREA)
US11/366,034 2006-03-02 2006-03-02 Independent center reel position adjustment for an agricultural harvesting machine Active 2026-06-28 US7426817B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/366,034 US7426817B2 (en) 2006-03-02 2006-03-02 Independent center reel position adjustment for an agricultural harvesting machine
ARP070100847A AR059701A1 (es) 2006-03-02 2007-03-01 Ajuste de posicion de carrete central independiente para una maquina cosechadora agricola
PCT/US2007/005432 WO2007103207A2 (en) 2006-03-02 2007-03-01 Independent center reel position adjustment for an agricultural harvesting machine
BRPI0708049A BRPI0708049B1 (pt) 2006-03-02 2007-03-01 máquina colheitadeira agrícola, plataforma de corte para uso com uma máquina colheitadeira agrícola, e, método para operar uma máquina colheitadeira agrícola
EP07752150.8A EP1993340B1 (en) 2006-03-02 2007-03-01 Independent center reel position adjustment for an agricultural harvesting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/366,034 US7426817B2 (en) 2006-03-02 2006-03-02 Independent center reel position adjustment for an agricultural harvesting machine

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US20070204583A1 US20070204583A1 (en) 2007-09-06
US7426817B2 true US7426817B2 (en) 2008-09-23

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US11/366,034 Active 2026-06-28 US7426817B2 (en) 2006-03-02 2006-03-02 Independent center reel position adjustment for an agricultural harvesting machine

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US (1) US7426817B2 (pt)
EP (1) EP1993340B1 (pt)
AR (1) AR059701A1 (pt)
BR (1) BRPI0708049B1 (pt)
WO (1) WO2007103207A2 (pt)

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US7802417B2 (en) 2006-02-10 2010-09-28 Agco Corporation Combine harvester draper header central auger transition floor pan
US7827773B2 (en) 2008-05-09 2010-11-09 AGCO Cororation Center crop deflector for draper header
US7827775B2 (en) 2008-05-09 2010-11-09 Agco Corporation Flexible draper and cutter bar having shiftable crop divider with deflector
US7836671B2 (en) 2006-02-10 2010-11-23 Agco Corporation Flexible draper and cutter bar with tilt arm for cutterbar drive
US7874132B2 (en) 2008-05-09 2011-01-25 Agco Corporation Header height control system with multiple potentiometer input
US7877976B2 (en) 2008-05-09 2011-02-01 Agco Corporation Spring flotation for center deck of draper header
US20110030326A1 (en) * 2009-08-05 2011-02-10 Kevin Markt Flexible row crop header for an agricultural harvester
US7886511B2 (en) 2008-05-09 2011-02-15 Agco Corporation Draper head with flexible cutterbar having rigid center section
US7886512B2 (en) 2006-02-10 2011-02-15 Agco Corporation Draper belt interlocking guards
US7913481B2 (en) 2008-05-09 2011-03-29 Agco Corporation Adjustable cutterbar travel range for a flexible cutterbar header
US7921627B2 (en) 2008-05-09 2011-04-12 Agco Corporation Interlocking belt guards for a draper header
US7958711B1 (en) 2010-06-16 2011-06-14 Agco Corporation Crop deflector for ends of draper belt of flexible draper header
US8205421B2 (en) 2010-06-16 2012-06-26 Agco Corporation Belt guard crop dam for flexible draper header
US8479483B1 (en) 2011-12-27 2013-07-09 Agco Corporation Flexible draper head providing reduced crop residue accumulation
US8555607B2 (en) 2008-04-25 2013-10-15 Deere & Company Integrated draper belt support and skid shoe in an agricultural harvesting machine
WO2016199070A1 (en) * 2015-06-11 2016-12-15 Stw S.R.L. Improved telescopic reel
EA027902B1 (ru) * 2014-02-24 2017-09-29 Джеймс Стирлинг Уоллис Дональд Жатка комбайна или уборочной машины
EA029420B1 (ru) * 2013-02-28 2018-03-30 Дир Энд Компани Полотенная жатка с дополнительным транспортером в переходной области
US10201125B2 (en) 2014-09-05 2019-02-12 Cnh Industrial America Llc Combined center cam and reel arm
WO2022077122A1 (en) * 2020-10-16 2022-04-21 Macdon Industries Ltd. Draper header with automatic reel to cutter bar clearance
US11337371B2 (en) * 2019-12-23 2022-05-24 Cnh Industrial America Llc Systems and methods for limiting reel adjustment in an agricultural header
US12058959B2 (en) 2019-01-24 2024-08-13 Cnh Industrial America Llc Reel assembly of an agricultural header

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US8176716B2 (en) 2010-08-31 2012-05-15 Deere & Company Flexible reel for an agricultural harvesting head
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US9144199B2 (en) * 2013-08-30 2015-09-29 Deere & Company Articulated harvesting head load sensor arrangement
BE1022461B1 (nl) * 2014-09-10 2016-04-07 Cnh Industrial Belgium Nv Maaibordbalkgeheel en werkwijze voor het gebruik ervan
BR102015003443B1 (pt) * 2015-02-18 2020-10-20 Onivaldo Favoretto sistema de corte antiperda com molinete flutuante
BR102016005189B1 (pt) * 2015-03-13 2020-11-17 Cnh Industrial Belgium Nv Colheitadeira agricola
DE102015116892A1 (de) * 2015-10-05 2017-04-06 Carl Geringhoff Gmbh & Co. Kg Schneidwerk mit verstellbarer Seitenrahmenentlastung
US10595462B2 (en) * 2017-06-30 2020-03-24 Deere & Company Harvester head reel segments synchronization
US10477765B2 (en) * 2017-09-20 2019-11-19 Cnh Industrial America Llc Rotatable coupler for a reel arm of a reel header
US11617304B2 (en) * 2019-10-25 2023-04-04 Cnh Industrial America Llc Staggered harvester head reel position adjustment
US11719322B2 (en) * 2019-11-19 2023-08-08 CNH Industrial America, LLC Multi-segment sprocket for a reel drive mechanism of a header of an agricultural harvester
US20210274710A1 (en) * 2020-03-05 2021-09-09 Cnh Industrial America Llc Variable speed reel drive for a header of an agricultural harvester
US12108704B2 (en) * 2021-05-19 2024-10-08 Deere & Company Agricultural header reel position control based on header wing position

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US4124970A (en) * 1977-06-03 1978-11-14 Sperry Rand Corporation Automatic reel height control for a harvester header having a flexible cutterbar
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US7958711B1 (en) 2010-06-16 2011-06-14 Agco Corporation Crop deflector for ends of draper belt of flexible draper header
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US12058959B2 (en) 2019-01-24 2024-08-13 Cnh Industrial America Llc Reel assembly of an agricultural header
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AR059701A1 (es) 2008-04-23
BRPI0708049B1 (pt) 2016-03-15
WO2007103207A2 (en) 2007-09-13
BRPI0708049A2 (pt) 2011-05-17
EP1993340B1 (en) 2017-05-17
EP1993340A4 (en) 2012-08-29
EP1993340A2 (en) 2008-11-26
WO2007103207A3 (en) 2007-11-29
US20070204583A1 (en) 2007-09-06

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